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Finding the Fourth Proportional to 152,802.60, 210,869.40 and 84,820.92

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Solution

The fourth proportional to 152,802.60, 210,869.40 and 84,820.92 is: 117,053.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,802.60 : 210,869.40 = 84,820.92 : x
  2. Step 2: Convert to fraction form
    152,802.60/210,869.40 = 84,820.92/x
  3. Step 3: Cross multiply
    152,802.60x = 210,869.40 × 84,820.92
  4. Step 4: Simplify right side
    152,802.60x = 17,886,136,507.85
  5. Step 5: Solve for x
    x = 17,886,136,507.85/152,802.60
  6. Step 6: Final answer
    x = 117,053.88

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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.