Home / 124,140.50-171,312.45-67,550.90

Finding the Fourth Proportional to 124,140.50, 171,312.45 and 67,550.90

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Solution

The fourth proportional to 124,140.50, 171,312.45 and 67,550.90 is: 93,219.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,140.50 : 171,312.45 = 67,550.90 : x
  2. Step 2: Convert to fraction form
    124,140.50/171,312.45 = 67,550.90/x
  3. Step 3: Cross multiply
    124,140.50x = 171,312.45 × 67,550.90
  4. Step 4: Simplify right side
    124,140.50x = 11,572,310,178.71
  5. Step 5: Solve for x
    x = 11,572,310,178.71/124,140.50
  6. Step 6: Final answer
    x = 93,219.46

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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.