Home / 103,435.53-142,730.95-58,103.25

Finding the Fourth Proportional to 103,435.53, 142,730.95 and 58,103.25

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Solution

The fourth proportional to 103,435.53, 142,730.95 and 58,103.25 is: 80,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,435.53 : 142,730.95 = 58,103.25 : x
  2. Step 2: Convert to fraction form
    103,435.53/142,730.95 = 58,103.25/x
  3. Step 3: Cross multiply
    103,435.53x = 142,730.95 × 58,103.25
  4. Step 4: Simplify right side
    103,435.53x = 8,293,132,070.59
  5. Step 5: Solve for x
    x = 8,293,132,070.59/103,435.53
  6. Step 6: Final answer
    x = 80,176.82

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1.5x scale

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.