Home / 465,109.76-697,539.75-128,070.17

Finding the Fourth Proportional to 465,109.76, 697,539.75 and 128,070.17

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Solution

The fourth proportional to 465,109.76, 697,539.75 and 128,070.17 is: 192,070.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,109.76 : 697,539.75 = 128,070.17 : x
  2. Step 2: Convert to fraction form
    465,109.76/697,539.75 = 128,070.17/x
  3. Step 3: Cross multiply
    465,109.76x = 697,539.75 × 128,070.17
  4. Step 4: Simplify right side
    465,109.76x = 89,334,036,108.11
  5. Step 5: Solve for x
    x = 89,334,036,108.11/465,109.76
  6. Step 6: Final answer
    x = 192,070.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.