Home / 99,258.24-136,975.68-54,547.20

Finding the Fourth Proportional to 99,258.24, 136,975.68 and 54,547.20

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Solution

The fourth proportional to 99,258.24, 136,975.68 and 54,547.20 is: 75,274.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,258.24 : 136,975.68 = 54,547.20 : x
  2. Step 2: Convert to fraction form
    99,258.24/136,975.68 = 54,547.20/x
  3. Step 3: Cross multiply
    99,258.24x = 136,975.68 × 54,547.20
  4. Step 4: Simplify right side
    99,258.24x = 7,471,639,812.10
  5. Step 5: Solve for x
    x = 7,471,639,812.10/99,258.24
  6. Step 6: Final answer
    x = 75,274.76

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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.