Home / 102,988.25-142,125.95-58,276.25

Finding the Fourth Proportional to 102,988.25, 142,125.95 and 58,276.25

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Solution

The fourth proportional to 102,988.25, 142,125.95 and 58,276.25 is: 80,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,988.25 : 142,125.95 = 58,276.25 : x
  2. Step 2: Convert to fraction form
    102,988.25/142,125.95 = 58,276.25/x
  3. Step 3: Cross multiply
    102,988.25x = 142,125.95 × 58,276.25
  4. Step 4: Simplify right side
    102,988.25x = 8,282,567,393.69
  5. Step 5: Solve for x
    x = 8,282,567,393.69/102,988.25
  6. Step 6: Final answer
    x = 80,422.45

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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.