Home / 113,938.42-157,278.60-101,980.38

Finding the Fourth Proportional to 113,938.42, 157,278.60 and 101,980.38

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Solution

The fourth proportional to 113,938.42, 157,278.60 and 101,980.38 is: 140,771.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,938.42 : 157,278.60 = 101,980.38 : x
  2. Step 2: Convert to fraction form
    113,938.42/157,278.60 = 101,980.38/x
  3. Step 3: Cross multiply
    113,938.42x = 157,278.60 × 101,980.38
  4. Step 4: Simplify right side
    113,938.42x = 16,039,331,393.87
  5. Step 5: Solve for x
    x = 16,039,331,393.87/113,938.42
  6. Step 6: Final answer
    x = 140,771.93

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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.