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Finding the Fourth Proportional to 152,360.99, 210,258.75 and 84,376.47

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Solution

The fourth proportional to 152,360.99, 210,258.75 and 84,376.47 is: 116,439.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,360.99 : 210,258.75 = 84,376.47 : x
  2. Step 2: Convert to fraction form
    152,360.99/210,258.75 = 84,376.47/x
  3. Step 3: Cross multiply
    152,360.99x = 210,258.75 × 84,376.47
  4. Step 4: Simplify right side
    152,360.99x = 17,740,891,111.61
  5. Step 5: Solve for x
    x = 17,740,891,111.61/152,360.99
  6. Step 6: Final answer
    x = 116,439.85

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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.