Home / 148,030.40-221,608.20-130,534.40

Finding the Fourth Proportional to 148,030.40, 221,608.20 and 130,534.40

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Solution

The fourth proportional to 148,030.40, 221,608.20 and 130,534.40 is: 195,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,030.40 : 221,608.20 = 130,534.40 : x
  2. Step 2: Convert to fraction form
    148,030.40/221,608.20 = 130,534.40/x
  3. Step 3: Cross multiply
    148,030.40x = 221,608.20 × 130,534.40
  4. Step 4: Simplify right side
    148,030.40x = 28,927,493,422.08
  5. Step 5: Solve for x
    x = 28,927,493,422.08/148,030.40
  6. Step 6: Final answer
    x = 195,415.90

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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.