Home / 191,531.30-286,859.55-112,799.30

Finding the Fourth Proportional to 191,531.30, 286,859.55 and 112,799.30

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Solution

The fourth proportional to 191,531.30, 286,859.55 and 112,799.30 is: 168,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,531.30 : 286,859.55 = 112,799.30 : x
  2. Step 2: Convert to fraction form
    191,531.30/286,859.55 = 112,799.30/x
  3. Step 3: Cross multiply
    191,531.30x = 286,859.55 × 112,799.30
  4. Step 4: Simplify right side
    191,531.30x = 32,357,556,438.32
  5. Step 5: Solve for x
    x = 32,357,556,438.32/191,531.30
  6. Step 6: Final answer
    x = 168,941.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.