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Finding the Fourth Proportional to 158,894.64, 219,289.83 and 90,898.11

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Solution

The fourth proportional to 158,894.64, 219,289.83 and 90,898.11 is: 125,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,894.64 : 219,289.83 = 90,898.11 : x
  2. Step 2: Convert to fraction form
    158,894.64/219,289.83 = 90,898.11/x
  3. Step 3: Cross multiply
    158,894.64x = 219,289.83 × 90,898.11
  4. Step 4: Simplify right side
    158,894.64x = 19,933,031,089.22
  5. Step 5: Solve for x
    x = 19,933,031,089.22/158,894.64
  6. Step 6: Final answer
    x = 125,448.10

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1.5x scale

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.