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Finding the Fourth Proportional to 148,854.80, 223,541.40 and 78,870.80

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Solution

The fourth proportional to 148,854.80, 223,541.40 and 78,870.80 is: 118,443.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,854.80 : 223,541.40 = 78,870.80 : x
  2. Step 2: Convert to fraction form
    148,854.80/223,541.40 = 78,870.80/x
  3. Step 3: Cross multiply
    148,854.80x = 223,541.40 × 78,870.80
  4. Step 4: Simplify right side
    148,854.80x = 17,630,889,051.12
  5. Step 5: Solve for x
    x = 17,630,889,051.12/148,854.80
  6. Step 6: Final answer
    x = 118,443.54

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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.