Home / 115,214.70-172,931.40-70,927.95

Finding the Fourth Proportional to 115,214.70, 172,931.40 and 70,927.95

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Solution

The fourth proportional to 115,214.70, 172,931.40 and 70,927.95 is: 106,459.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,214.70 : 172,931.40 = 70,927.95 : x
  2. Step 2: Convert to fraction form
    115,214.70/172,931.40 = 70,927.95/x
  3. Step 3: Cross multiply
    115,214.70x = 172,931.40 × 70,927.95
  4. Step 4: Simplify right side
    115,214.70x = 12,265,669,692.63
  5. Step 5: Solve for x
    x = 12,265,669,692.63/115,214.70
  6. Step 6: Final answer
    x = 106,459.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.