Home / 156,695.80-216,239.52-85,075.24

Finding the Fourth Proportional to 156,695.80, 216,239.52 and 85,075.24

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Solution

The fourth proportional to 156,695.80, 216,239.52 and 85,075.24 is: 117,403.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,695.80 : 216,239.52 = 85,075.24 : x
  2. Step 2: Convert to fraction form
    156,695.80/216,239.52 = 85,075.24/x
  3. Step 3: Cross multiply
    156,695.80x = 216,239.52 × 85,075.24
  4. Step 4: Simplify right side
    156,695.80x = 18,396,629,061.48
  5. Step 5: Solve for x
    x = 18,396,629,061.48/156,695.80
  6. Step 6: Final answer
    x = 117,403.46

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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.