Home / 103,259.04-142,231.95-72,992.31

Finding the Fourth Proportional to 103,259.04, 142,231.95 and 72,992.31

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Solution

The fourth proportional to 103,259.04, 142,231.95 and 72,992.31 is: 100,541.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,259.04 : 142,231.95 = 72,992.31 : x
  2. Step 2: Convert to fraction form
    103,259.04/142,231.95 = 72,992.31/x
  3. Step 3: Cross multiply
    103,259.04x = 142,231.95 × 72,992.31
  4. Step 4: Simplify right side
    103,259.04x = 10,381,838,052.93
  5. Step 5: Solve for x
    x = 10,381,838,052.93/103,259.04
  6. Step 6: Final answer
    x = 100,541.69

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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.