Home / 191,981.76-264,931.68-107,108.16

Finding the Fourth Proportional to 191,981.76, 264,931.68 and 107,108.16

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Solution

The fourth proportional to 191,981.76, 264,931.68 and 107,108.16 is: 147,807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,981.76 : 264,931.68 = 107,108.16 : x
  2. Step 2: Convert to fraction form
    191,981.76/264,931.68 = 107,108.16/x
  3. Step 3: Cross multiply
    191,981.76x = 264,931.68 × 107,108.16
  4. Step 4: Simplify right side
    191,981.76x = 28,376,344,770.51
  5. Step 5: Solve for x
    x = 28,376,344,770.51/191,981.76
  6. Step 6: Final answer
    x = 147,807.50

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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.