Home / 121,120.90-181,681.35-116,001.70

Finding the Fourth Proportional to 121,120.90, 181,681.35 and 116,001.70

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Solution

The fourth proportional to 121,120.90, 181,681.35 and 116,001.70 is: 174,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,120.90 : 181,681.35 = 116,001.70 : x
  2. Step 2: Convert to fraction form
    121,120.90/181,681.35 = 116,001.70/x
  3. Step 3: Cross multiply
    121,120.90x = 181,681.35 × 116,001.70
  4. Step 4: Simplify right side
    121,120.90x = 21,075,345,458.30
  5. Step 5: Solve for x
    x = 21,075,345,458.30/121,120.90
  6. Step 6: Final answer
    x = 174,002.55

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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.