Home / 145,389.78-218,084.40-45,557.62

Finding the Fourth Proportional to 145,389.78, 218,084.40 and 45,557.62

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Solution

The fourth proportional to 145,389.78, 218,084.40 and 45,557.62 is: 68,336.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,389.78 : 218,084.40 = 45,557.62 : x
  2. Step 2: Convert to fraction form
    145,389.78/218,084.40 = 45,557.62/x
  3. Step 3: Cross multiply
    145,389.78x = 218,084.40 × 45,557.62
  4. Step 4: Simplify right side
    145,389.78x = 9,935,405,677.92
  5. Step 5: Solve for x
    x = 9,935,405,677.92/145,389.78
  6. Step 6: Final answer
    x = 68,336.34

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1.5x scale

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.