Home / 116,513.76-160,802.64-66,220.32

Finding the Fourth Proportional to 116,513.76, 160,802.64 and 66,220.32

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Solution

The fourth proportional to 116,513.76, 160,802.64 and 66,220.32 is: 91,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,513.76 : 160,802.64 = 66,220.32 : x
  2. Step 2: Convert to fraction form
    116,513.76/160,802.64 = 66,220.32/x
  3. Step 3: Cross multiply
    116,513.76x = 160,802.64 × 66,220.32
  4. Step 4: Simplify right side
    116,513.76x = 10,648,402,277.64
  5. Step 5: Solve for x
    x = 10,648,402,277.64/116,513.76
  6. Step 6: Final answer
    x = 91,391.80

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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.