Home / 114,278.10-157,702.05-63,978.90

Finding the Fourth Proportional to 114,278.10, 157,702.05 and 63,978.90

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Solution

The fourth proportional to 114,278.10, 157,702.05 and 63,978.90 is: 88,289.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,278.10 : 157,702.05 = 63,978.90 : x
  2. Step 2: Convert to fraction form
    114,278.10/157,702.05 = 63,978.90/x
  3. Step 3: Cross multiply
    114,278.10x = 157,702.05 × 63,978.90
  4. Step 4: Simplify right side
    114,278.10x = 10,089,603,686.75
  5. Step 5: Solve for x
    x = 10,089,603,686.75/114,278.10
  6. Step 6: Final answer
    x = 88,289.91

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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.