Home / 103,630.19-142,999.46-58,307.18

Finding the Fourth Proportional to 103,630.19, 142,999.46 and 58,307.18

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Solution

The fourth proportional to 103,630.19, 142,999.46 and 58,307.18 is: 80,458.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.19 : 142,999.46 = 58,307.18 : x
  2. Step 2: Convert to fraction form
    103,630.19/142,999.46 = 58,307.18/x
  3. Step 3: Cross multiply
    103,630.19x = 142,999.46 × 58,307.18
  4. Step 4: Simplify right side
    103,630.19x = 8,337,895,254.12
  5. Step 5: Solve for x
    x = 8,337,895,254.12/103,630.19
  6. Step 6: Final answer
    x = 80,458.17

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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.