Home / 145,726.74-201,113.20-81,200.26

Finding the Fourth Proportional to 145,726.74, 201,113.20 and 81,200.26

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Solution

The fourth proportional to 145,726.74, 201,113.20 and 81,200.26 is: 112,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,726.74 : 201,113.20 = 81,200.26 : x
  2. Step 2: Convert to fraction form
    145,726.74/201,113.20 = 81,200.26/x
  3. Step 3: Cross multiply
    145,726.74x = 201,113.20 × 81,200.26
  4. Step 4: Simplify right side
    145,726.74x = 16,330,444,129.43
  5. Step 5: Solve for x
    x = 16,330,444,129.43/145,726.74
  6. Step 6: Final answer
    x = 112,062.10

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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.