Home / 130,943.04-180,701.44-71,327.04

Finding the Fourth Proportional to 130,943.04, 180,701.44 and 71,327.04

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Solution

The fourth proportional to 130,943.04, 180,701.44 and 71,327.04 is: 98,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,943.04 : 180,701.44 = 71,327.04 : x
  2. Step 2: Convert to fraction form
    130,943.04/180,701.44 = 71,327.04/x
  3. Step 3: Cross multiply
    130,943.04x = 180,701.44 × 71,327.04
  4. Step 4: Simplify right side
    130,943.04x = 12,888,898,838.94
  5. Step 5: Solve for x
    x = 12,888,898,838.94/130,943.04
  6. Step 6: Final answer
    x = 98,431.34

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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.