Home / 157,007.12-216,667.58-85,387.74

Finding the Fourth Proportional to 157,007.12, 216,667.58 and 85,387.74

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Solution

The fourth proportional to 157,007.12, 216,667.58 and 85,387.74 is: 117,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,007.12 : 216,667.58 = 85,387.74 : x
  2. Step 2: Convert to fraction form
    157,007.12/216,667.58 = 85,387.74/x
  3. Step 3: Cross multiply
    157,007.12x = 216,667.58 × 85,387.74
  4. Step 4: Simplify right side
    157,007.12x = 18,500,754,987.47
  5. Step 5: Solve for x
    x = 18,500,754,987.47/157,007.12
  6. Step 6: Final answer
    x = 117,833.86

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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.