Home / 191,177.15-263,828.75-105,130.71

Finding the Fourth Proportional to 191,177.15, 263,828.75 and 105,130.71

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Solution

The fourth proportional to 191,177.15, 263,828.75 and 105,130.71 is: 145,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,177.15 : 263,828.75 = 105,130.71 : x
  2. Step 2: Convert to fraction form
    191,177.15/263,828.75 = 105,130.71/x
  3. Step 3: Cross multiply
    191,177.15x = 263,828.75 × 105,130.71
  4. Step 4: Simplify right side
    191,177.15x = 27,736,503,280.26
  5. Step 5: Solve for x
    x = 27,736,503,280.26/191,177.15
  6. Step 6: Final answer
    x = 145,082.74

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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.