Home / 147,913.40-221,870.10-54,455.60

Finding the Fourth Proportional to 147,913.40, 221,870.10 and 54,455.60

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Solution

The fourth proportional to 147,913.40, 221,870.10 and 54,455.60 is: 81,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,913.40 : 221,870.10 = 54,455.60 : x
  2. Step 2: Convert to fraction form
    147,913.40/221,870.10 = 54,455.60/x
  3. Step 3: Cross multiply
    147,913.40x = 221,870.10 × 54,455.60
  4. Step 4: Simplify right side
    147,913.40x = 12,082,069,417.56
  5. Step 5: Solve for x
    x = 12,082,069,417.56/147,913.40
  6. Step 6: Final answer
    x = 81,683.40

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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.