Home / 207,320.10-310,783.12-81,041.30

Finding the Fourth Proportional to 207,320.10, 310,783.12 and 81,041.30

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Solution

The fourth proportional to 207,320.10, 310,783.12 and 81,041.30 is: 121,484.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,320.10 : 310,783.12 = 81,041.30 : x
  2. Step 2: Convert to fraction form
    207,320.10/310,783.12 = 81,041.30/x
  3. Step 3: Cross multiply
    207,320.10x = 310,783.12 × 81,041.30
  4. Step 4: Simplify right side
    207,320.10x = 25,186,268,062.86
  5. Step 5: Solve for x
    x = 25,186,268,062.86/207,320.10
  6. Step 6: Final answer
    x = 121,484.93

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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.