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Finding the Fourth Proportional to 158,036.53, 217,904.07 and 127,728.13

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Solution

The fourth proportional to 158,036.53, 217,904.07 and 127,728.13 is: 176,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,036.53 : 217,904.07 = 127,728.13 : x
  2. Step 2: Convert to fraction form
    158,036.53/217,904.07 = 127,728.13/x
  3. Step 3: Cross multiply
    158,036.53x = 217,904.07 × 127,728.13
  4. Step 4: Simplify right side
    158,036.53x = 27,832,478,741.85
  5. Step 5: Solve for x
    x = 27,832,478,741.85/158,036.53
  6. Step 6: Final answer
    x = 176,114.21

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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.