Home / 98,909.61-136,492.39-58,073.05

Finding the Fourth Proportional to 98,909.61, 136,492.39 and 58,073.05

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Solution

The fourth proportional to 98,909.61, 136,492.39 and 58,073.05 is: 80,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,909.61 : 136,492.39 = 58,073.05 : x
  2. Step 2: Convert to fraction form
    98,909.61/136,492.39 = 58,073.05/x
  3. Step 3: Cross multiply
    98,909.61x = 136,492.39 × 58,073.05
  4. Step 4: Simplify right side
    98,909.61x = 7,926,529,632.30
  5. Step 5: Solve for x
    x = 7,926,529,632.30/98,909.61
  6. Step 6: Final answer
    x = 80,139.13

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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.