Home / 191,527.40-287,291.10-66,852.20

Finding the Fourth Proportional to 191,527.40, 287,291.10 and 66,852.20

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Solution

The fourth proportional to 191,527.40, 287,291.10 and 66,852.20 is: 100,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,527.40 : 287,291.10 = 66,852.20 : x
  2. Step 2: Convert to fraction form
    191,527.40/287,291.10 = 66,852.20/x
  3. Step 3: Cross multiply
    191,527.40x = 287,291.10 × 66,852.20
  4. Step 4: Simplify right side
    191,527.40x = 19,206,042,075.42
  5. Step 5: Solve for x
    x = 19,206,042,075.42/191,527.40
  6. Step 6: Final answer
    x = 100,278.30

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1.5x scale

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.