Home / 90,825,875.03-136,238,812.55-74,683,354.65

Finding the Fourth Proportional to 90,825,875.03, 136,238,812.55 and 74,683,354.65

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Solution

The fourth proportional to 90,825,875.03, 136,238,812.55 and 74,683,354.65 is: 112,025,031.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825,875.03 : 136,238,812.55 = 74,683,354.65 : x
  2. Step 2: Convert to fraction form
    90,825,875.03/136,238,812.55 = 74,683,354.65/x
  3. Step 3: Cross multiply
    90,825,875.03x = 136,238,812.55 × 74,683,354.65
  4. Step 4: Simplify right side
    90,825,875.03x = 10,174,771,554,393,104
  5. Step 5: Solve for x
    x = 10,174,771,554,393,104/90,825,875.03
  6. Step 6: Final answer
    x = 112,025,031.98

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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.