Home / 130,869.69-180,554.17-85,574.18

Finding the Fourth Proportional to 130,869.69, 180,554.17 and 85,574.18

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Solution

The fourth proportional to 130,869.69, 180,554.17 and 85,574.18 is: 118,062.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,869.69 : 180,554.17 = 85,574.18 : x
  2. Step 2: Convert to fraction form
    130,869.69/180,554.17 = 85,574.18/x
  3. Step 3: Cross multiply
    130,869.69x = 180,554.17 × 85,574.18
  4. Step 4: Simplify right side
    130,869.69x = 15,450,775,043.33
  5. Step 5: Solve for x
    x = 15,450,775,043.33/130,869.69
  6. Step 6: Final answer
    x = 118,062.29

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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.