Home / 102,020.07-153,005.81-42,856.89

Finding the Fourth Proportional to 102,020.07, 153,005.81 and 42,856.89

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Solution

The fourth proportional to 102,020.07, 153,005.81 and 42,856.89 is: 64,275.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,020.07 : 153,005.81 = 42,856.89 : x
  2. Step 2: Convert to fraction form
    102,020.07/153,005.81 = 42,856.89/x
  3. Step 3: Cross multiply
    102,020.07x = 153,005.81 × 42,856.89
  4. Step 4: Simplify right side
    102,020.07x = 6,557,352,954.25
  5. Step 5: Solve for x
    x = 6,557,352,954.25/102,020.07
  6. Step 6: Final answer
    x = 64,275.13

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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.