Home / 157,063.06-216,740.64-85,443.13

Finding the Fourth Proportional to 157,063.06, 216,740.64 and 85,443.13

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Solution

The fourth proportional to 157,063.06, 216,740.64 and 85,443.13 is: 117,908.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,063.06 : 216,740.64 = 85,443.13 : x
  2. Step 2: Convert to fraction form
    157,063.06/216,740.64 = 85,443.13/x
  3. Step 3: Cross multiply
    157,063.06x = 216,740.64 × 85,443.13
  4. Step 4: Simplify right side
    157,063.06x = 18,518,998,679.80
  5. Step 5: Solve for x
    x = 18,518,998,679.80/157,063.06
  6. Step 6: Final answer
    x = 117,908.05

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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.