Home / 130,959.69-180,725.63-74,371.47

Finding the Fourth Proportional to 130,959.69, 180,725.63 and 74,371.47

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Solution

The fourth proportional to 130,959.69, 180,725.63 and 74,371.47 is: 102,633.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,959.69 : 180,725.63 = 74,371.47 : x
  2. Step 2: Convert to fraction form
    130,959.69/180,725.63 = 74,371.47/x
  3. Step 3: Cross multiply
    130,959.69x = 180,725.63 × 74,371.47
  4. Step 4: Simplify right side
    130,959.69x = 13,440,830,397.92
  5. Step 5: Solve for x
    x = 13,440,830,397.92/130,959.69
  6. Step 6: Final answer
    x = 102,633.34

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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.