Home / 103,602.18-142,833.36-67,730.52

Finding the Fourth Proportional to 103,602.18, 142,833.36 and 67,730.52

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Solution

The fourth proportional to 103,602.18, 142,833.36 and 67,730.52 is: 93,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,602.18 : 142,833.36 = 67,730.52 : x
  2. Step 2: Convert to fraction form
    103,602.18/142,833.36 = 67,730.52/x
  3. Step 3: Cross multiply
    103,602.18x = 142,833.36 × 67,730.52
  4. Step 4: Simplify right side
    103,602.18x = 9,674,177,746.15
  5. Step 5: Solve for x
    x = 9,674,177,746.15/103,602.18
  6. Step 6: Final answer
    x = 93,378.13

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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.