Home / 124,856.16-172,318.38-70,419.51

Finding the Fourth Proportional to 124,856.16, 172,318.38 and 70,419.51

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Solution

The fourth proportional to 124,856.16, 172,318.38 and 70,419.51 is: 97,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,856.16 : 172,318.38 = 70,419.51 : x
  2. Step 2: Convert to fraction form
    124,856.16/172,318.38 = 70,419.51/x
  3. Step 3: Cross multiply
    124,856.16x = 172,318.38 × 70,419.51
  4. Step 4: Simplify right side
    124,856.16x = 12,134,575,619.52
  5. Step 5: Solve for x
    x = 12,134,575,619.52/124,856.16
  6. Step 6: Final answer
    x = 97,188.44

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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.