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Finding the Fourth Proportional to 121,697.69, 168,802.00 and 118,460.93

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Solution

The fourth proportional to 121,697.69, 168,802.00 and 118,460.93 is: 164,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,697.69 : 168,802.00 = 118,460.93 : x
  2. Step 2: Convert to fraction form
    121,697.69/168,802.00 = 118,460.93/x
  3. Step 3: Cross multiply
    121,697.69x = 168,802.00 × 118,460.93
  4. Step 4: Simplify right side
    121,697.69x = 19,996,440,765.70
  5. Step 5: Solve for x
    x = 19,996,440,765.70/121,697.69
  6. Step 6: Final answer
    x = 164,312.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.