Home / 191,531.16-264,312.84-105,490.74

Finding the Fourth Proportional to 191,531.16, 264,312.84 and 105,490.74

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Solution

The fourth proportional to 191,531.16, 264,312.84 and 105,490.74 is: 145,577.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,531.16 : 264,312.84 = 105,490.74 : x
  2. Step 2: Convert to fraction form
    191,531.16/264,312.84 = 105,490.74/x
  3. Step 3: Cross multiply
    191,531.16x = 264,312.84 × 105,490.74
  4. Step 4: Simplify right side
    191,531.16x = 27,882,557,083.10
  5. Step 5: Solve for x
    x = 27,882,557,083.10/191,531.16
  6. Step 6: Final answer
    x = 145,577.13

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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.