Home / 152,670.80-229,006.20-105,431.60

Finding the Fourth Proportional to 152,670.80, 229,006.20 and 105,431.60

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Solution

The fourth proportional to 152,670.80, 229,006.20 and 105,431.60 is: 158,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,670.80 : 229,006.20 = 105,431.60 : x
  2. Step 2: Convert to fraction form
    152,670.80/229,006.20 = 105,431.60/x
  3. Step 3: Cross multiply
    152,670.80x = 229,006.20 × 105,431.60
  4. Step 4: Simplify right side
    152,670.80x = 24,144,490,075.92
  5. Step 5: Solve for x
    x = 24,144,490,075.92/152,670.80
  6. Step 6: Final answer
    x = 158,147.40

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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.