Home / 155,643.45-233,386.62-71,332.50

Finding the Fourth Proportional to 155,643.45, 233,386.62 and 71,332.50

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Solution

The fourth proportional to 155,643.45, 233,386.62 and 71,332.50 is: 106,962.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,643.45 : 233,386.62 = 71,332.50 : x
  2. Step 2: Convert to fraction form
    155,643.45/233,386.62 = 71,332.50/x
  3. Step 3: Cross multiply
    155,643.45x = 233,386.62 × 71,332.50
  4. Step 4: Simplify right side
    155,643.45x = 16,648,051,071.15
  5. Step 5: Solve for x
    x = 16,648,051,071.15/155,643.45
  6. Step 6: Final answer
    x = 106,962.75

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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.