Home / 157,099.30-235,648.95-115,272.93

Finding the Fourth Proportional to 157,099.30, 235,648.95 and 115,272.93

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Solution

The fourth proportional to 157,099.30, 235,648.95 and 115,272.93 is: 172,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,099.30 : 235,648.95 = 115,272.93 : x
  2. Step 2: Convert to fraction form
    157,099.30/235,648.95 = 115,272.93/x
  3. Step 3: Cross multiply
    157,099.30x = 235,648.95 × 115,272.93
  4. Step 4: Simplify right side
    157,099.30x = 27,163,944,917.92
  5. Step 5: Solve for x
    x = 27,163,944,917.92/157,099.30
  6. Step 6: Final answer
    x = 172,909.40

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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.