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Finding the Fourth Proportional to 115,038.30, 158,752.53 and 64,737.30

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Solution

The fourth proportional to 115,038.30, 158,752.53 and 64,737.30 is: 89,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,038.30 : 158,752.53 = 64,737.30 : x
  2. Step 2: Convert to fraction form
    115,038.30/158,752.53 = 64,737.30/x
  3. Step 3: Cross multiply
    115,038.30x = 158,752.53 × 64,737.30
  4. Step 4: Simplify right side
    115,038.30x = 10,277,210,160.37
  5. Step 5: Solve for x
    x = 10,277,210,160.37/115,038.30
  6. Step 6: Final answer
    x = 89,337.29

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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.