Home / 113,888.04-157,080.56-100,982.46

Finding the Fourth Proportional to 113,888.04, 157,080.56 and 100,982.46

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Solution

The fourth proportional to 113,888.04, 157,080.56 and 100,982.46 is: 139,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,888.04 : 157,080.56 = 100,982.46 : x
  2. Step 2: Convert to fraction form
    113,888.04/157,080.56 = 100,982.46/x
  3. Step 3: Cross multiply
    113,888.04x = 157,080.56 × 100,982.46
  4. Step 4: Simplify right side
    113,888.04x = 15,862,380,862.07
  5. Step 5: Solve for x
    x = 15,862,380,862.07/113,888.04
  6. Step 6: Final answer
    x = 139,280.48

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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.