Home / 127,490.29-191,259.08-42,107.06

Finding the Fourth Proportional to 127,490.29, 191,259.08 and 42,107.06

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Solution

The fourth proportional to 127,490.29, 191,259.08 and 42,107.06 is: 63,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,490.29 : 191,259.08 = 42,107.06 : x
  2. Step 2: Convert to fraction form
    127,490.29/191,259.08 = 42,107.06/x
  3. Step 3: Cross multiply
    127,490.29x = 191,259.08 × 42,107.06
  4. Step 4: Simplify right side
    127,490.29x = 8,053,357,025.21
  5. Step 5: Solve for x
    x = 8,053,357,025.21/127,490.29
  6. Step 6: Final answer
    x = 63,168.40

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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.