Home / 130,549.29-180,158.63-73,971.69

Finding the Fourth Proportional to 130,549.29, 180,158.63 and 73,971.69

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Solution

The fourth proportional to 130,549.29, 180,158.63 and 73,971.69 is: 102,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,549.29 : 180,158.63 = 73,971.69 : x
  2. Step 2: Convert to fraction form
    130,549.29/180,158.63 = 73,971.69/x
  3. Step 3: Cross multiply
    130,549.29x = 180,158.63 × 73,971.69
  4. Step 4: Simplify right side
    130,549.29x = 13,326,637,959.33
  5. Step 5: Solve for x
    x = 13,326,637,959.33/130,549.29
  6. Step 6: Final answer
    x = 102,081.27

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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.