Home / 103,038.04-142,190.84-57,715.92

Finding the Fourth Proportional to 103,038.04, 142,190.84 and 57,715.92

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Solution

The fourth proportional to 103,038.04, 142,190.84 and 57,715.92 is: 79,647.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,038.04 : 142,190.84 = 57,715.92 : x
  2. Step 2: Convert to fraction form
    103,038.04/142,190.84 = 57,715.92/x
  3. Step 3: Cross multiply
    103,038.04x = 142,190.84 × 57,715.92
  4. Step 4: Simplify right side
    103,038.04x = 8,206,675,146.17
  5. Step 5: Solve for x
    x = 8,206,675,146.17/103,038.04
  6. Step 6: Final answer
    x = 79,647.04

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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.