Home / 130,673.77-180,384.86-88,289.71

Finding the Fourth Proportional to 130,673.77, 180,384.86 and 88,289.71

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Solution

The fourth proportional to 130,673.77, 180,384.86 and 88,289.71 is: 121,877.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,673.77 : 180,384.86 = 88,289.71 : x
  2. Step 2: Convert to fraction form
    130,673.77/180,384.86 = 88,289.71/x
  3. Step 3: Cross multiply
    130,673.77x = 180,384.86 × 88,289.71
  4. Step 4: Simplify right side
    130,673.77x = 15,926,126,987.30
  5. Step 5: Solve for x
    x = 15,926,126,987.30/130,673.77
  6. Step 6: Final answer
    x = 121,877.00

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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.