Home / 123,347.75-170,201.57-72,341.24

Finding the Fourth Proportional to 123,347.75, 170,201.57 and 72,341.24

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Solution

The fourth proportional to 123,347.75, 170,201.57 and 72,341.24 is: 99,820.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,347.75 : 170,201.57 = 72,341.24 : x
  2. Step 2: Convert to fraction form
    123,347.75/170,201.57 = 72,341.24/x
  3. Step 3: Cross multiply
    123,347.75x = 170,201.57 × 72,341.24
  4. Step 4: Simplify right side
    123,347.75x = 12,312,591,411.03
  5. Step 5: Solve for x
    x = 12,312,591,411.03/123,347.75
  6. Step 6: Final answer
    x = 99,820.16

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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.