Home / 153,840.84-212,282.28-89,295.18

Finding the Fourth Proportional to 153,840.84, 212,282.28 and 89,295.18

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Solution

The fourth proportional to 153,840.84, 212,282.28 and 89,295.18 is: 123,216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,840.84 : 212,282.28 = 89,295.18 : x
  2. Step 2: Convert to fraction form
    153,840.84/212,282.28 = 89,295.18/x
  3. Step 3: Cross multiply
    153,840.84x = 212,282.28 × 89,295.18
  4. Step 4: Simplify right side
    153,840.84x = 18,955,784,403.41
  5. Step 5: Solve for x
    x = 18,955,784,403.41/153,840.84
  6. Step 6: Final answer
    x = 123,216.85

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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.