Home / 105,117.42-157,582.34-38,541.98

Finding the Fourth Proportional to 105,117.42, 157,582.34 and 38,541.98

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Solution

The fourth proportional to 105,117.42, 157,582.34 and 38,541.98 is: 57,778.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,117.42 : 157,582.34 = 38,541.98 : x
  2. Step 2: Convert to fraction form
    105,117.42/157,582.34 = 38,541.98/x
  3. Step 3: Cross multiply
    105,117.42x = 157,582.34 × 38,541.98
  4. Step 4: Simplify right side
    105,117.42x = 6,073,535,396.63
  5. Step 5: Solve for x
    x = 6,073,535,396.63/105,117.42
  6. Step 6: Final answer
    x = 57,778.58

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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.