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Finding the Fourth Proportional to 152,657.40, 210,659.76 and 84,668.35

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Solution

The fourth proportional to 152,657.40, 210,659.76 and 84,668.35 is: 116,838.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,657.40 : 210,659.76 = 84,668.35 : x
  2. Step 2: Convert to fraction form
    152,657.40/210,659.76 = 84,668.35/x
  3. Step 3: Cross multiply
    152,657.40x = 210,659.76 × 84,668.35
  4. Step 4: Simplify right side
    152,657.40x = 17,836,214,290.60
  5. Step 5: Solve for x
    x = 17,836,214,290.60/152,657.40
  6. Step 6: Final answer
    x = 116,838.19

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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.