Home / 153,153.66-211,321.08-89,479.16

Finding the Fourth Proportional to 153,153.66, 211,321.08 and 89,479.16

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Solution

The fourth proportional to 153,153.66, 211,321.08 and 89,479.16 is: 123,463.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,153.66 : 211,321.08 = 89,479.16 : x
  2. Step 2: Convert to fraction form
    153,153.66/211,321.08 = 89,479.16/x
  3. Step 3: Cross multiply
    153,153.66x = 211,321.08 × 89,479.16
  4. Step 4: Simplify right side
    153,153.66x = 18,908,831,672.09
  5. Step 5: Solve for x
    x = 18,908,831,672.09/153,153.66
  6. Step 6: Final answer
    x = 123,463.14

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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.