Home / 147,398.13-203,384.93-83,712.69

Finding the Fourth Proportional to 147,398.13, 203,384.93 and 83,712.69

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Solution

The fourth proportional to 147,398.13, 203,384.93 and 83,712.69 is: 115,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,398.13 : 203,384.93 = 83,712.69 : x
  2. Step 2: Convert to fraction form
    147,398.13/203,384.93 = 83,712.69/x
  3. Step 3: Cross multiply
    147,398.13x = 203,384.93 × 83,712.69
  4. Step 4: Simplify right side
    147,398.13x = 17,025,899,177.20
  5. Step 5: Solve for x
    x = 17,025,899,177.20/147,398.13
  6. Step 6: Final answer
    x = 115,509.60

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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.