Home / 152,332.20-210,437.40-121,665.03

Finding the Fourth Proportional to 152,332.20, 210,437.40 and 121,665.03

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Solution

The fourth proportional to 152,332.20, 210,437.40 and 121,665.03 is: 168,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,332.20 : 210,437.40 = 121,665.03 : x
  2. Step 2: Convert to fraction form
    152,332.20/210,437.40 = 121,665.03/x
  3. Step 3: Cross multiply
    152,332.20x = 210,437.40 × 121,665.03
  4. Step 4: Simplify right side
    152,332.20x = 25,602,872,645.80
  5. Step 5: Solve for x
    x = 25,602,872,645.80/152,332.20
  6. Step 6: Final answer
    x = 168,072.63

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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.