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Finding the Fourth Proportional to 156,153.95, 215,492.52 and 84,533.97

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Solution

The fourth proportional to 156,153.95, 215,492.52 and 84,533.97 is: 116,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,153.95 : 215,492.52 = 84,533.97 : x
  2. Step 2: Convert to fraction form
    156,153.95/215,492.52 = 84,533.97/x
  3. Step 3: Cross multiply
    156,153.95x = 215,492.52 × 84,533.97
  4. Step 4: Simplify right side
    156,153.95x = 18,216,437,470.84
  5. Step 5: Solve for x
    x = 18,216,437,470.84/156,153.95
  6. Step 6: Final answer
    x = 116,656.91

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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.