Home / 130,973.07-180,740.43-72,833.40

Finding the Fourth Proportional to 130,973.07, 180,740.43 and 72,833.40

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Solution

The fourth proportional to 130,973.07, 180,740.43 and 72,833.40 is: 100,508.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,973.07 : 180,740.43 = 72,833.40 : x
  2. Step 2: Convert to fraction form
    130,973.07/180,740.43 = 72,833.40/x
  3. Step 3: Cross multiply
    130,973.07x = 180,740.43 × 72,833.40
  4. Step 4: Simplify right side
    130,973.07x = 13,163,940,034.36
  5. Step 5: Solve for x
    x = 13,163,940,034.36/130,973.07
  6. Step 6: Final answer
    x = 100,508.75

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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.