Home / 152,332.12-210,218.56-83,421.28

Finding the Fourth Proportional to 152,332.12, 210,218.56 and 83,421.28

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Solution

The fourth proportional to 152,332.12, 210,218.56 and 83,421.28 is: 115,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,332.12 : 210,218.56 = 83,421.28 : x
  2. Step 2: Convert to fraction form
    152,332.12/210,218.56 = 83,421.28/x
  3. Step 3: Cross multiply
    152,332.12x = 210,218.56 × 83,421.28
  4. Step 4: Simplify right side
    152,332.12x = 17,536,701,354.96
  5. Step 5: Solve for x
    x = 17,536,701,354.96/152,332.12
  6. Step 6: Final answer
    x = 115,121.49

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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.