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Finding the Fourth Proportional to 157,053.60, 235,004.40 and 115,581.60

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Solution

The fourth proportional to 157,053.60, 235,004.40 and 115,581.60 is: 172,948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,053.60 : 235,004.40 = 115,581.60 : x
  2. Step 2: Convert to fraction form
    157,053.60/235,004.40 = 115,581.60/x
  3. Step 3: Cross multiply
    157,053.60x = 235,004.40 × 115,581.60
  4. Step 4: Simplify right side
    157,053.60x = 27,162,184,559.04
  5. Step 5: Solve for x
    x = 27,162,184,559.04/157,053.60
  6. Step 6: Final answer
    x = 172,948.50

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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.