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Finding the Fourth Proportional to 164,011.80, 245,862.90 and 89,021.40

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Solution

The fourth proportional to 164,011.80, 245,862.90 and 89,021.40 is: 133,448.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,011.80 : 245,862.90 = 89,021.40 : x
  2. Step 2: Convert to fraction form
    164,011.80/245,862.90 = 89,021.40/x
  3. Step 3: Cross multiply
    164,011.80x = 245,862.90 × 89,021.40
  4. Step 4: Simplify right side
    164,011.80x = 21,887,059,566.06
  5. Step 5: Solve for x
    x = 21,887,059,566.06/164,011.80
  6. Step 6: Final answer
    x = 133,448.08

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1.5x scale

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.