Home / 121,931.05-182,659.95-89,851.91

Finding the Fourth Proportional to 121,931.05, 182,659.95 and 89,851.91

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Solution

The fourth proportional to 121,931.05, 182,659.95 and 89,851.91 is: 134,603.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,931.05 : 182,659.95 = 89,851.91 : x
  2. Step 2: Convert to fraction form
    121,931.05/182,659.95 = 89,851.91/x
  3. Step 3: Cross multiply
    121,931.05x = 182,659.95 × 89,851.91
  4. Step 4: Simplify right side
    121,931.05x = 16,412,344,862.08
  5. Step 5: Solve for x
    x = 16,412,344,862.08/121,931.05
  6. Step 6: Final answer
    x = 134,603.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.