Home / 145,112.64-217,587.28-50,298.40

Finding the Fourth Proportional to 145,112.64, 217,587.28 and 50,298.40

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Solution

The fourth proportional to 145,112.64, 217,587.28 and 50,298.40 is: 75,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,112.64 : 217,587.28 = 50,298.40 : x
  2. Step 2: Convert to fraction form
    145,112.64/217,587.28 = 50,298.40/x
  3. Step 3: Cross multiply
    145,112.64x = 217,587.28 × 50,298.40
  4. Step 4: Simplify right side
    145,112.64x = 10,944,292,044.35
  5. Step 5: Solve for x
    x = 10,944,292,044.35/145,112.64
  6. Step 6: Final answer
    x = 75,419.29

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1.5x scale

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.