Home / 130,016.08-179,420.10-72,656.20

Finding the Fourth Proportional to 130,016.08, 179,420.10 and 72,656.20

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Solution

The fourth proportional to 130,016.08, 179,420.10 and 72,656.20 is: 100,264.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,016.08 : 179,420.10 = 72,656.20 : x
  2. Step 2: Convert to fraction form
    130,016.08/179,420.10 = 72,656.20/x
  3. Step 3: Cross multiply
    130,016.08x = 179,420.10 × 72,656.20
  4. Step 4: Simplify right side
    130,016.08x = 13,035,982,669.62
  5. Step 5: Solve for x
    x = 13,035,982,669.62/130,016.08
  6. Step 6: Final answer
    x = 100,264.39

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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.