Home / 147,988.08-204,174.48-83,449.20

Finding the Fourth Proportional to 147,988.08, 204,174.48 and 83,449.20

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Solution

The fourth proportional to 147,988.08, 204,174.48 and 83,449.20 is: 115,132.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,988.08 : 204,174.48 = 83,449.20 : x
  2. Step 2: Convert to fraction form
    147,988.08/204,174.48 = 83,449.20/x
  3. Step 3: Cross multiply
    147,988.08x = 204,174.48 × 83,449.20
  4. Step 4: Simplify right side
    147,988.08x = 17,038,197,016.42
  5. Step 5: Solve for x
    x = 17,038,197,016.42/147,988.08
  6. Step 6: Final answer
    x = 115,132.23

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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.