Home / 124,834.64-172,263.16-70,388.75

Finding the Fourth Proportional to 124,834.64, 172,263.16 and 70,388.75

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Solution

The fourth proportional to 124,834.64, 172,263.16 and 70,388.75 is: 97,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,834.64 : 172,263.16 = 70,388.75 : x
  2. Step 2: Convert to fraction form
    124,834.64/172,263.16 = 70,388.75/x
  3. Step 3: Cross multiply
    124,834.64x = 172,263.16 × 70,388.75
  4. Step 4: Simplify right side
    124,834.64x = 12,125,387,657.18
  5. Step 5: Solve for x
    x = 12,125,387,657.18/124,834.64
  6. Step 6: Final answer
    x = 97,131.59

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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.