Home / 102,091.36-153,128.76-64,541.92

Finding the Fourth Proportional to 102,091.36, 153,128.76 and 64,541.92

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Solution

The fourth proportional to 102,091.36, 153,128.76 and 64,541.92 is: 96,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,091.36 : 153,128.76 = 64,541.92 : x
  2. Step 2: Convert to fraction form
    102,091.36/153,128.76 = 64,541.92/x
  3. Step 3: Cross multiply
    102,091.36x = 153,128.76 × 64,541.92
  4. Step 4: Simplify right side
    102,091.36x = 9,883,224,177.62
  5. Step 5: Solve for x
    x = 9,883,224,177.62/102,091.36
  6. Step 6: Final answer
    x = 96,807.65

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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.