Home / 156,030.64-215,322.09-84,410.50

Finding the Fourth Proportional to 156,030.64, 215,322.09 and 84,410.50

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Solution

The fourth proportional to 156,030.64, 215,322.09 and 84,410.50 is: 116,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,030.64 : 215,322.09 = 84,410.50 : x
  2. Step 2: Convert to fraction form
    156,030.64/215,322.09 = 84,410.50/x
  3. Step 3: Cross multiply
    156,030.64x = 215,322.09 × 84,410.50
  4. Step 4: Simplify right side
    156,030.64x = 18,175,445,277.95
  5. Step 5: Solve for x
    x = 18,175,445,277.95/156,030.64
  6. Step 6: Final answer
    x = 116,486.39

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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.