Home / 125,131.74-172,685.13-70,679.58

Finding the Fourth Proportional to 125,131.74, 172,685.13 and 70,679.58

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Solution

The fourth proportional to 125,131.74, 172,685.13 and 70,679.58 is: 97,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,131.74 : 172,685.13 = 70,679.58 : x
  2. Step 2: Convert to fraction form
    125,131.74/172,685.13 = 70,679.58/x
  3. Step 3: Cross multiply
    125,131.74x = 172,685.13 × 70,679.58
  4. Step 4: Simplify right side
    125,131.74x = 12,205,312,460.65
  5. Step 5: Solve for x
    x = 12,205,312,460.65/125,131.74
  6. Step 6: Final answer
    x = 97,539.70

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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.