Home / 103,617.10-142,986.08-61,160.14

Finding the Fourth Proportional to 103,617.10, 142,986.08 and 61,160.14

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Solution

The fourth proportional to 103,617.10, 142,986.08 and 61,160.14 is: 84,397.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,617.10 : 142,986.08 = 61,160.14 : x
  2. Step 2: Convert to fraction form
    103,617.10/142,986.08 = 61,160.14/x
  3. Step 3: Cross multiply
    103,617.10x = 142,986.08 × 61,160.14
  4. Step 4: Simplify right side
    103,617.10x = 8,745,048,670.85
  5. Step 5: Solve for x
    x = 8,745,048,670.85/103,617.10
  6. Step 6: Final answer
    x = 84,397.74

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1.5x scale

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.