Home / 130,547.80-180,113.42-76,087.54

Finding the Fourth Proportional to 130,547.80, 180,113.42 and 76,087.54

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Solution

The fourth proportional to 130,547.80, 180,113.42 and 76,087.54 is: 104,976.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,547.80 : 180,113.42 = 76,087.54 : x
  2. Step 2: Convert to fraction form
    130,547.80/180,113.42 = 76,087.54/x
  3. Step 3: Cross multiply
    130,547.80x = 180,113.42 × 76,087.54
  4. Step 4: Simplify right side
    130,547.80x = 13,704,385,767.78
  5. Step 5: Solve for x
    x = 13,704,385,767.78/130,547.80
  6. Step 6: Final answer
    x = 104,976.00

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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.