Home / 130,853.34-180,578.61-74,266.02

Finding the Fourth Proportional to 130,853.34, 180,578.61 and 74,266.02

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Solution

The fourth proportional to 130,853.34, 180,578.61 and 74,266.02 is: 102,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,853.34 : 180,578.61 = 74,266.02 : x
  2. Step 2: Convert to fraction form
    130,853.34/180,578.61 = 74,266.02/x
  3. Step 3: Cross multiply
    130,853.34x = 180,578.61 × 74,266.02
  4. Step 4: Simplify right side
    130,853.34x = 13,410,854,661.83
  5. Step 5: Solve for x
    x = 13,410,854,661.83/130,853.34
  6. Step 6: Final answer
    x = 102,487.68

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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.