Home / 130,956.20-180,547.18-85,555.29

Finding the Fourth Proportional to 130,956.20, 180,547.18 and 85,555.29

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Solution

The fourth proportional to 130,956.20, 180,547.18 and 85,555.29 is: 117,953.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,956.20 : 180,547.18 = 85,555.29 : x
  2. Step 2: Convert to fraction form
    130,956.20/180,547.18 = 85,555.29/x
  3. Step 3: Cross multiply
    130,956.20x = 180,547.18 × 85,555.29
  4. Step 4: Simplify right side
    130,956.20x = 15,446,766,343.58
  5. Step 5: Solve for x
    x = 15,446,766,343.58/130,956.20
  6. Step 6: Final answer
    x = 117,953.69

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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.