Home / 145,885.32-201,221.82-89,324.64

Finding the Fourth Proportional to 145,885.32, 201,221.82 and 89,324.64

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Solution

The fourth proportional to 145,885.32, 201,221.82 and 89,324.64 is: 123,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,885.32 : 201,221.82 = 89,324.64 : x
  2. Step 2: Convert to fraction form
    145,885.32/201,221.82 = 89,324.64/x
  3. Step 3: Cross multiply
    145,885.32x = 201,221.82 × 89,324.64
  4. Step 4: Simplify right side
    145,885.32x = 17,974,066,631.64
  5. Step 5: Solve for x
    x = 17,974,066,631.64/145,885.32
  6. Step 6: Final answer
    x = 123,206.82

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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.