Home / 103,030.88-142,174.80-62,740.17

Finding the Fourth Proportional to 103,030.88, 142,174.80 and 62,740.17

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Solution

The fourth proportional to 103,030.88, 142,174.80 and 62,740.17 is: 86,576.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,030.88 : 142,174.80 = 62,740.17 : x
  2. Step 2: Convert to fraction form
    103,030.88/142,174.80 = 62,740.17/x
  3. Step 3: Cross multiply
    103,030.88x = 142,174.80 × 62,740.17
  4. Step 4: Simplify right side
    103,030.88x = 8,920,071,121.72
  5. Step 5: Solve for x
    x = 8,920,071,121.72/103,030.88
  6. Step 6: Final answer
    x = 86,576.68

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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.