Home / 132,543.40-182,910.69-72,114.50

Finding the Fourth Proportional to 132,543.40, 182,910.69 and 72,114.50

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Solution

The fourth proportional to 132,543.40, 182,910.69 and 72,114.50 is: 99,518.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,543.40 : 182,910.69 = 72,114.50 : x
  2. Step 2: Convert to fraction form
    132,543.40/182,910.69 = 72,114.50/x
  3. Step 3: Cross multiply
    132,543.40x = 182,910.69 × 72,114.50
  4. Step 4: Simplify right side
    132,543.40x = 13,190,513,715.51
  5. Step 5: Solve for x
    x = 13,190,513,715.51/132,543.40
  6. Step 6: Final answer
    x = 99,518.45

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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.