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Finding the Fourth Proportional to 152,555.78, 210,539.41 and 84,594.07

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Solution

The fourth proportional to 152,555.78, 210,539.41 and 84,594.07 is: 116,746.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,555.78 : 210,539.41 = 84,594.07 : x
  2. Step 2: Convert to fraction form
    152,555.78/210,539.41 = 84,594.07/x
  3. Step 3: Cross multiply
    152,555.78x = 210,539.41 × 84,594.07
  4. Step 4: Simplify right side
    152,555.78x = 17,810,386,233.79
  5. Step 5: Solve for x
    x = 17,810,386,233.79/152,555.78
  6. Step 6: Final answer
    x = 116,746.72

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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.