Home / 120,995.40-181,547.10-42,166.20

Finding the Fourth Proportional to 120,995.40, 181,547.10 and 42,166.20

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Solution

The fourth proportional to 120,995.40, 181,547.10 and 42,166.20 is: 63,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,995.40 : 181,547.10 = 42,166.20 : x
  2. Step 2: Convert to fraction form
    120,995.40/181,547.10 = 42,166.20/x
  3. Step 3: Cross multiply
    120,995.40x = 181,547.10 × 42,166.20
  4. Step 4: Simplify right side
    120,995.40x = 7,655,151,328.02
  5. Step 5: Solve for x
    x = 7,655,151,328.02/120,995.40
  6. Step 6: Final answer
    x = 63,268.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.