Home / 130,056.02-179,489.61-81,665.91

Finding the Fourth Proportional to 130,056.02, 179,489.61 and 81,665.91

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Solution

The fourth proportional to 130,056.02, 179,489.61 and 81,665.91 is: 112,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,056.02 : 179,489.61 = 81,665.91 : x
  2. Step 2: Convert to fraction form
    130,056.02/179,489.61 = 81,665.91/x
  3. Step 3: Cross multiply
    130,056.02x = 179,489.61 × 81,665.91
  4. Step 4: Simplify right side
    130,056.02x = 14,658,182,336.20
  5. Step 5: Solve for x
    x = 14,658,182,336.20/130,056.02
  6. Step 6: Final answer
    x = 112,706.69

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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.