Home / 107,702.28-148,643.13-61,779.87

Finding the Fourth Proportional to 107,702.28, 148,643.13 and 61,779.87

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Solution

The fourth proportional to 107,702.28, 148,643.13 and 61,779.87 is: 85,264.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,702.28 : 148,643.13 = 61,779.87 : x
  2. Step 2: Convert to fraction form
    107,702.28/148,643.13 = 61,779.87/x
  3. Step 3: Cross multiply
    107,702.28x = 148,643.13 × 61,779.87
  4. Step 4: Simplify right side
    107,702.28x = 9,183,153,247.79
  5. Step 5: Solve for x
    x = 9,183,153,247.79/107,702.28
  6. Step 6: Final answer
    x = 85,264.24

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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.