Home / 145,867.32-201,196.98-89,306.64

Finding the Fourth Proportional to 145,867.32, 201,196.98 and 89,306.64

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Solution

The fourth proportional to 145,867.32, 201,196.98 and 89,306.64 is: 123,181.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,867.32 : 201,196.98 = 89,306.64 : x
  2. Step 2: Convert to fraction form
    145,867.32/201,196.98 = 89,306.64/x
  3. Step 3: Cross multiply
    145,867.32x = 201,196.98 × 89,306.64
  4. Step 4: Simplify right side
    145,867.32x = 17,968,226,261.95
  5. Step 5: Solve for x
    x = 17,968,226,261.95/145,867.32
  6. Step 6: Final answer
    x = 123,181.99

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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.