Home / 152,777.81-229,172.93-72,774.65

Finding the Fourth Proportional to 152,777.81, 229,172.93 and 72,774.65

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Solution

The fourth proportional to 152,777.81, 229,172.93 and 72,774.65 is: 109,164.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,777.81 : 229,172.93 = 72,774.65 : x
  2. Step 2: Convert to fraction form
    152,777.81/229,172.93 = 72,774.65/x
  3. Step 3: Cross multiply
    152,777.81x = 229,172.93 × 72,774.65
  4. Step 4: Simplify right side
    152,777.81x = 16,677,980,252.19
  5. Step 5: Solve for x
    x = 16,677,980,252.19/152,777.81
  6. Step 6: Final answer
    x = 109,164.94

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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.