Home / 185,663.13-256,214.50-100,779.58

Finding the Fourth Proportional to 185,663.13, 256,214.50 and 100,779.58

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Solution

The fourth proportional to 185,663.13, 256,214.50 and 100,779.58 is: 139,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,663.13 : 256,214.50 = 100,779.58 : x
  2. Step 2: Convert to fraction form
    185,663.13/256,214.50 = 100,779.58/x
  3. Step 3: Cross multiply
    185,663.13x = 256,214.50 × 100,779.58
  4. Step 4: Simplify right side
    185,663.13x = 25,821,189,699.91
  5. Step 5: Solve for x
    x = 25,821,189,699.91/185,663.13
  6. Step 6: Final answer
    x = 139,075.48

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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.