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Finding the Fourth Proportional to 160,459.36, 240,605.80 and 70,465.12

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Solution

The fourth proportional to 160,459.36, 240,605.80 and 70,465.12 is: 105,661.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,459.36 : 240,605.80 = 70,465.12 : x
  2. Step 2: Convert to fraction form
    160,459.36/240,605.80 = 70,465.12/x
  3. Step 3: Cross multiply
    160,459.36x = 240,605.80 × 70,465.12
  4. Step 4: Simplify right side
    160,459.36x = 16,954,316,569.70
  5. Step 5: Solve for x
    x = 16,954,316,569.70/160,459.36
  6. Step 6: Final answer
    x = 105,661.13

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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.