Home / 191,680.19-264,520.45-105,642.25

Finding the Fourth Proportional to 191,680.19, 264,520.45 and 105,642.25

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Solution

The fourth proportional to 191,680.19, 264,520.45 and 105,642.25 is: 145,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,680.19 : 264,520.45 = 105,642.25 : x
  2. Step 2: Convert to fraction form
    191,680.19/264,520.45 = 105,642.25/x
  3. Step 3: Cross multiply
    191,680.19x = 264,520.45 × 105,642.25
  4. Step 4: Simplify right side
    191,680.19x = 27,944,534,186.41
  5. Step 5: Solve for x
    x = 27,944,534,186.41/191,680.19
  6. Step 6: Final answer
    x = 145,787.28

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1.5x scale

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.