Home / 126,296.16-189,403.20-42,038.40

Finding the Fourth Proportional to 126,296.16, 189,403.20 and 42,038.40

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Solution

The fourth proportional to 126,296.16, 189,403.20 and 42,038.40 is: 63,043.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,296.16 : 189,403.20 = 42,038.40 : x
  2. Step 2: Convert to fraction form
    126,296.16/189,403.20 = 42,038.40/x
  3. Step 3: Cross multiply
    126,296.16x = 189,403.20 × 42,038.40
  4. Step 4: Simplify right side
    126,296.16x = 7,962,207,482.88
  5. Step 5: Solve for x
    x = 7,962,207,482.88/126,296.16
  6. Step 6: Final answer
    x = 63,043.94

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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.