Home / 125,341.34-172,970.55-67,980.43

Finding the Fourth Proportional to 125,341.34, 172,970.55 and 67,980.43

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Solution

The fourth proportional to 125,341.34, 172,970.55 and 67,980.43 is: 93,812.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,341.34 : 172,970.55 = 67,980.43 : x
  2. Step 2: Convert to fraction form
    125,341.34/172,970.55 = 67,980.43/x
  3. Step 3: Cross multiply
    125,341.34x = 172,970.55 × 67,980.43
  4. Step 4: Simplify right side
    125,341.34x = 11,758,612,366.34
  5. Step 5: Solve for x
    x = 11,758,612,366.34/125,341.34
  6. Step 6: Final answer
    x = 93,812.72

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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.