Home / 124,985.84-172,301.02-89,113.57

Finding the Fourth Proportional to 124,985.84, 172,301.02 and 89,113.57

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Solution

The fourth proportional to 124,985.84, 172,301.02 and 89,113.57 is: 122,848.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,985.84 : 172,301.02 = 89,113.57 : x
  2. Step 2: Convert to fraction form
    124,985.84/172,301.02 = 89,113.57/x
  3. Step 3: Cross multiply
    124,985.84x = 172,301.02 × 89,113.57
  4. Step 4: Simplify right side
    124,985.84x = 15,354,358,353.30
  5. Step 5: Solve for x
    x = 15,354,358,353.30/124,985.84
  6. Step 6: Final answer
    x = 122,848.79

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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.