Home / 130,779.60-180,447.12-83,015.52

Finding the Fourth Proportional to 130,779.60, 180,447.12 and 83,015.52

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Solution

The fourth proportional to 130,779.60, 180,447.12 and 83,015.52 is: 114,543.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,779.60 : 180,447.12 = 83,015.52 : x
  2. Step 2: Convert to fraction form
    130,779.60/180,447.12 = 83,015.52/x
  3. Step 3: Cross multiply
    130,779.60x = 180,447.12 × 83,015.52
  4. Step 4: Simplify right side
    130,779.60x = 14,979,911,499.30
  5. Step 5: Solve for x
    x = 14,979,911,499.30/130,779.60
  6. Step 6: Final answer
    x = 114,543.18

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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.