Home / 103,391.16-142,693.05-63,096.40

Finding the Fourth Proportional to 103,391.16, 142,693.05 and 63,096.40

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Solution

The fourth proportional to 103,391.16, 142,693.05 and 63,096.40 is: 87,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,391.16 : 142,693.05 = 63,096.40 : x
  2. Step 2: Convert to fraction form
    103,391.16/142,693.05 = 63,096.40/x
  3. Step 3: Cross multiply
    103,391.16x = 142,693.05 × 63,096.40
  4. Step 4: Simplify right side
    103,391.16x = 9,003,417,760.02
  5. Step 5: Solve for x
    x = 9,003,417,760.02/103,391.16
  6. Step 6: Final answer
    x = 87,081.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.