Home / 191,418.12-287,186.04-97,989.48

Finding the Fourth Proportional to 191,418.12, 287,186.04 and 97,989.48

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Solution

The fourth proportional to 191,418.12, 287,186.04 and 97,989.48 is: 147,014.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,418.12 : 287,186.04 = 97,989.48 : x
  2. Step 2: Convert to fraction form
    191,418.12/287,186.04 = 97,989.48/x
  3. Step 3: Cross multiply
    191,418.12x = 287,186.04 × 97,989.48
  4. Step 4: Simplify right side
    191,418.12x = 28,141,210,722.86
  5. Step 5: Solve for x
    x = 28,141,210,722.86/191,418.12
  6. Step 6: Final answer
    x = 147,014.35

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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.