Home / 157,038.30-235,478.61-72,725.94

Finding the Fourth Proportional to 157,038.30, 235,478.61 and 72,725.94

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Solution

The fourth proportional to 157,038.30, 235,478.61 and 72,725.94 is: 109,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,038.30 : 235,478.61 = 72,725.94 : x
  2. Step 2: Convert to fraction form
    157,038.30/235,478.61 = 72,725.94/x
  3. Step 3: Cross multiply
    157,038.30x = 235,478.61 × 72,725.94
  4. Step 4: Simplify right side
    157,038.30x = 17,125,403,262.14
  5. Step 5: Solve for x
    x = 17,125,403,262.14/157,038.30
  6. Step 6: Final answer
    x = 109,052.40

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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.