Home / 121,075.83-181,453.86-92,888.19

Finding the Fourth Proportional to 121,075.83, 181,453.86 and 92,888.19

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Solution

The fourth proportional to 121,075.83, 181,453.86 and 92,888.19 is: 139,209.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,075.83 : 181,453.86 = 92,888.19 : x
  2. Step 2: Convert to fraction form
    121,075.83/181,453.86 = 92,888.19/x
  3. Step 3: Cross multiply
    121,075.83x = 181,453.86 × 92,888.19
  4. Step 4: Simplify right side
    121,075.83x = 16,854,920,623.91
  5. Step 5: Solve for x
    x = 16,854,920,623.91/121,075.83
  6. Step 6: Final answer
    x = 139,209.62

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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.