Home / 156,027.64-215,317.95-84,407.50

Finding the Fourth Proportional to 156,027.64, 215,317.95 and 84,407.50

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Solution

The fourth proportional to 156,027.64, 215,317.95 and 84,407.50 is: 116,482.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,027.64 : 215,317.95 = 84,407.50 : x
  2. Step 2: Convert to fraction form
    156,027.64/215,317.95 = 84,407.50/x
  3. Step 3: Cross multiply
    156,027.64x = 215,317.95 × 84,407.50
  4. Step 4: Simplify right side
    156,027.64x = 18,174,449,864.63
  5. Step 5: Solve for x
    x = 18,174,449,864.63/156,027.64
  6. Step 6: Final answer
    x = 116,482.25

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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.