Home / 125,077.72-172,607.33-67,717.06

Finding the Fourth Proportional to 125,077.72, 172,607.33 and 67,717.06

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Solution

The fourth proportional to 125,077.72, 172,607.33 and 67,717.06 is: 93,449.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,077.72 : 172,607.33 = 67,717.06 : x
  2. Step 2: Convert to fraction form
    125,077.72/172,607.33 = 67,717.06/x
  3. Step 3: Cross multiply
    125,077.72x = 172,607.33 × 67,717.06
  4. Step 4: Simplify right side
    125,077.72x = 11,688,460,922.05
  5. Step 5: Solve for x
    x = 11,688,460,922.05/125,077.72
  6. Step 6: Final answer
    x = 93,449.58

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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.