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Finding the Fourth Proportional to 152,587.69, 210,592.80 and 84,619.78

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Solution

The fourth proportional to 152,587.69, 210,592.80 and 84,619.78 is: 116,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,587.69 : 210,592.80 = 84,619.78 : x
  2. Step 2: Convert to fraction form
    152,587.69/210,592.80 = 84,619.78/x
  3. Step 3: Cross multiply
    152,587.69x = 210,592.80 × 84,619.78
  4. Step 4: Simplify right side
    152,587.69x = 17,820,316,405.58
  5. Step 5: Solve for x
    x = 17,820,316,405.58/152,587.69
  6. Step 6: Final answer
    x = 116,787.38

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1.5x scale

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.