Home / 125,345.60-188,075.81-54,289.97

Finding the Fourth Proportional to 125,345.60, 188,075.81 and 54,289.97

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Solution

The fourth proportional to 125,345.60, 188,075.81 and 54,289.97 is: 81,459.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,345.60 : 188,075.81 = 54,289.97 : x
  2. Step 2: Convert to fraction form
    125,345.60/188,075.81 = 54,289.97/x
  3. Step 3: Cross multiply
    125,345.60x = 188,075.81 × 54,289.97
  4. Step 4: Simplify right side
    125,345.60x = 10,210,630,082.63
  5. Step 5: Solve for x
    x = 10,210,630,082.63/125,345.60
  6. Step 6: Final answer
    x = 81,459.82

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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.