Home / 130,221.77-179,714.95-72,866.53

Finding the Fourth Proportional to 130,221.77, 179,714.95 and 72,866.53

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Solution

The fourth proportional to 130,221.77, 179,714.95 and 72,866.53 is: 100,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,221.77 : 179,714.95 = 72,866.53 : x
  2. Step 2: Convert to fraction form
    130,221.77/179,714.95 = 72,866.53/x
  3. Step 3: Cross multiply
    130,221.77x = 179,714.95 × 72,866.53
  4. Step 4: Simplify right side
    130,221.77x = 13,095,204,838.10
  5. Step 5: Solve for x
    x = 13,095,204,838.10/130,221.77
  6. Step 6: Final answer
    x = 100,560.80

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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.