Home / 157,138.34-216,855.74-89,158.15

Finding the Fourth Proportional to 157,138.34, 216,855.74 and 89,158.15

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Solution

The fourth proportional to 157,138.34, 216,855.74 and 89,158.15 is: 123,040.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,138.34 : 216,855.74 = 89,158.15 : x
  2. Step 2: Convert to fraction form
    157,138.34/216,855.74 = 89,158.15/x
  3. Step 3: Cross multiply
    157,138.34x = 216,855.74 × 89,158.15
  4. Step 4: Simplify right side
    157,138.34x = 19,334,455,065.21
  5. Step 5: Solve for x
    x = 19,334,455,065.21/157,138.34
  6. Step 6: Final answer
    x = 123,040.98

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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.