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Finding the Fourth Proportional to 119,810.40, 179,715.60 and 119,032.80

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Solution

The fourth proportional to 119,810.40, 179,715.60 and 119,032.80 is: 178,549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,810.40 : 179,715.60 = 119,032.80 : x
  2. Step 2: Convert to fraction form
    119,810.40/179,715.60 = 119,032.80/x
  3. Step 3: Cross multiply
    119,810.40x = 179,715.60 × 119,032.80
  4. Step 4: Simplify right side
    119,810.40x = 21,392,051,071.68
  5. Step 5: Solve for x
    x = 21,392,051,071.68/119,810.40
  6. Step 6: Final answer
    x = 178,549.20

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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.