Home / 105,192,574.40-157,788,861.60-68,912,868.80

Finding the Fourth Proportional to 105,192,574.40, 157,788,861.60 and 68,912,868.80

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Solution

The fourth proportional to 105,192,574.40, 157,788,861.60 and 68,912,868.80 is: 103,369,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,192,574.40 : 157,788,861.60 = 68,912,868.80 : x
  2. Step 2: Convert to fraction form
    105,192,574.40/157,788,861.60 = 68,912,868.80/x
  3. Step 3: Cross multiply
    105,192,574.40x = 157,788,861.60 × 68,912,868.80
  4. Step 4: Simplify right side
    105,192,574.40x = 10,873,683,117,542,158
  5. Step 5: Solve for x
    x = 10,873,683,117,542,158/105,192,574.40
  6. Step 6: Final answer
    x = 103,369,303.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.