Home / 152,988.16-211,120.68-85,002.16

Finding the Fourth Proportional to 152,988.16, 211,120.68 and 85,002.16

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Solution

The fourth proportional to 152,988.16, 211,120.68 and 85,002.16 is: 117,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,988.16 : 211,120.68 = 85,002.16 : x
  2. Step 2: Convert to fraction form
    152,988.16/211,120.68 = 85,002.16/x
  3. Step 3: Cross multiply
    152,988.16x = 211,120.68 × 85,002.16
  4. Step 4: Simplify right side
    152,988.16x = 17,945,713,820.67
  5. Step 5: Solve for x
    x = 17,945,713,820.67/152,988.16
  6. Step 6: Final answer
    x = 117,301.32

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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.