Home / 121,030.60-181,502.70-42,147.40

Finding the Fourth Proportional to 121,030.60, 181,502.70 and 42,147.40

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Solution

The fourth proportional to 121,030.60, 181,502.70 and 42,147.40 is: 63,206.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,030.60 : 181,502.70 = 42,147.40 : x
  2. Step 2: Convert to fraction form
    121,030.60/181,502.70 = 42,147.40/x
  3. Step 3: Cross multiply
    121,030.60x = 181,502.70 × 42,147.40
  4. Step 4: Simplify right side
    121,030.60x = 7,649,866,897.98
  5. Step 5: Solve for x
    x = 7,649,866,897.98/121,030.60
  6. Step 6: Final answer
    x = 63,206.06

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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.