Home / 128,342.85-192,547.08-49,435.89

Finding the Fourth Proportional to 128,342.85, 192,547.08 and 49,435.89

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Solution

The fourth proportional to 128,342.85, 192,547.08 and 49,435.89 is: 74,166.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,342.85 : 192,547.08 = 49,435.89 : x
  2. Step 2: Convert to fraction form
    128,342.85/192,547.08 = 49,435.89/x
  3. Step 3: Cross multiply
    128,342.85x = 192,547.08 × 49,435.89
  4. Step 4: Simplify right side
    128,342.85x = 9,518,736,266.70
  5. Step 5: Solve for x
    x = 9,518,736,266.70/128,342.85
  6. Step 6: Final answer
    x = 74,166.47

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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.