Home / 141,478.40-212,156.16-42,959.36

Finding the Fourth Proportional to 141,478.40, 212,156.16 and 42,959.36

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Solution

The fourth proportional to 141,478.40, 212,156.16 and 42,959.36 is: 64,420.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,478.40 : 212,156.16 = 42,959.36 : x
  2. Step 2: Convert to fraction form
    141,478.40/212,156.16 = 42,959.36/x
  3. Step 3: Cross multiply
    141,478.40x = 212,156.16 × 42,959.36
  4. Step 4: Simplify right side
    141,478.40x = 9,114,092,853.66
  5. Step 5: Solve for x
    x = 9,114,092,853.66/141,478.40
  6. Step 6: Final answer
    x = 64,420.38

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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.