Home / 103,303.20-142,498.38-65,047.74

Finding the Fourth Proportional to 103,303.20, 142,498.38 and 65,047.74

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Solution

The fourth proportional to 103,303.20, 142,498.38 and 65,047.74 is: 89,728.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,303.20 : 142,498.38 = 65,047.74 : x
  2. Step 2: Convert to fraction form
    103,303.20/142,498.38 = 65,047.74/x
  3. Step 3: Cross multiply
    103,303.20x = 142,498.38 × 65,047.74
  4. Step 4: Simplify right side
    103,303.20x = 9,269,197,572.66
  5. Step 5: Solve for x
    x = 9,269,197,572.66/103,303.20
  6. Step 6: Final answer
    x = 89,728.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.