Home / 140,775.15-194,223.20-86,307.15

Finding the Fourth Proportional to 140,775.15, 194,223.20 and 86,307.15

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Solution

The fourth proportional to 140,775.15, 194,223.20 and 86,307.15 is: 119,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,775.15 : 194,223.20 = 86,307.15 : x
  2. Step 2: Convert to fraction form
    140,775.15/194,223.20 = 86,307.15/x
  3. Step 3: Cross multiply
    140,775.15x = 194,223.20 × 86,307.15
  4. Step 4: Simplify right side
    140,775.15x = 16,762,850,424.34
  5. Step 5: Solve for x
    x = 16,762,850,424.34/140,775.15
  6. Step 6: Final answer
    x = 119,075.35

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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.