Home / 194,742.90-292,114.35-128,258.10

Finding the Fourth Proportional to 194,742.90, 292,114.35 and 128,258.10

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Solution

The fourth proportional to 194,742.90, 292,114.35 and 128,258.10 is: 192,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,742.90 : 292,114.35 = 128,258.10 : x
  2. Step 2: Convert to fraction form
    194,742.90/292,114.35 = 128,258.10/x
  3. Step 3: Cross multiply
    194,742.90x = 292,114.35 × 128,258.10
  4. Step 4: Simplify right side
    194,742.90x = 37,466,031,513.74
  5. Step 5: Solve for x
    x = 37,466,031,513.74/194,742.90
  6. Step 6: Final answer
    x = 192,387.15

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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.