Home / 155,423.74-214,492.64-91,760.17

Finding the Fourth Proportional to 155,423.74, 214,492.64 and 91,760.17

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Solution

The fourth proportional to 155,423.74, 214,492.64 and 91,760.17 is: 126,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,423.74 : 214,492.64 = 91,760.17 : x
  2. Step 2: Convert to fraction form
    155,423.74/214,492.64 = 91,760.17/x
  3. Step 3: Cross multiply
    155,423.74x = 214,492.64 × 91,760.17
  4. Step 4: Simplify right side
    155,423.74x = 19,681,881,110.15
  5. Step 5: Solve for x
    x = 19,681,881,110.15/155,423.74
  6. Step 6: Final answer
    x = 126,633.69

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1.5x scale

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.