Home / 103,388.07-142,683.11-58,068.74

Finding the Fourth Proportional to 103,388.07, 142,683.11 and 58,068.74

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Solution

The fourth proportional to 103,388.07, 142,683.11 and 58,068.74 is: 80,139.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,388.07 : 142,683.11 = 58,068.74 : x
  2. Step 2: Convert to fraction form
    103,388.07/142,683.11 = 58,068.74/x
  3. Step 3: Cross multiply
    103,388.07x = 142,683.11 × 58,068.74
  4. Step 4: Simplify right side
    103,388.07x = 8,285,428,416.98
  5. Step 5: Solve for x
    x = 8,285,428,416.98/103,388.07
  6. Step 6: Final answer
    x = 80,139.11

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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.