Home / 191,530.86-264,310.09-105,488.21

Finding the Fourth Proportional to 191,530.86, 264,310.09 and 105,488.21

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Solution

The fourth proportional to 191,530.86, 264,310.09 and 105,488.21 is: 145,572.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,530.86 : 264,310.09 = 105,488.21 : x
  2. Step 2: Convert to fraction form
    191,530.86/264,310.09 = 105,488.21/x
  3. Step 3: Cross multiply
    191,530.86x = 264,310.09 × 105,488.21
  4. Step 4: Simplify right side
    191,530.86x = 27,881,596,693.77
  5. Step 5: Solve for x
    x = 27,881,596,693.77/191,530.86
  6. Step 6: Final answer
    x = 145,572.35

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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.