Home / 157,038.05-235,478.23-72,725.69

Finding the Fourth Proportional to 157,038.05, 235,478.23 and 72,725.69

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Solution

The fourth proportional to 157,038.05, 235,478.23 and 72,725.69 is: 109,052.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,038.05 : 235,478.23 = 72,725.69 : x
  2. Step 2: Convert to fraction form
    157,038.05/235,478.23 = 72,725.69/x
  3. Step 3: Cross multiply
    157,038.05x = 235,478.23 × 72,725.69
  4. Step 4: Simplify right side
    157,038.05x = 17,125,316,756.73
  5. Step 5: Solve for x
    x = 17,125,316,756.73/157,038.05
  6. Step 6: Final answer
    x = 109,052.02

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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.