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Finding the Fourth Proportional to 115,610, 159,541.80 and 62,618

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Solution

The fourth proportional to 115,610, 159,541.80 and 62,618 is: 86,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,610 : 159,541.80 = 62,618 : x
  2. Step 2: Convert to fraction form
    115,610/159,541.80 = 62,618/x
  3. Step 3: Cross multiply
    115,610x = 159,541.80 × 62,618
  4. Step 4: Simplify right side
    115,610x = 9,990,188,432.40
  5. Step 5: Solve for x
    x = 9,990,188,432.40/115,610
  6. Step 6: Final answer
    x = 86,412.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.