Home / 116,403.36-160,637.76-66,102.72

Finding the Fourth Proportional to 116,403.36, 160,637.76 and 66,102.72

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Solution

The fourth proportional to 116,403.36, 160,637.76 and 66,102.72 is: 91,222.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,403.36 : 160,637.76 = 66,102.72 : x
  2. Step 2: Convert to fraction form
    116,403.36/160,637.76 = 66,102.72/x
  3. Step 3: Cross multiply
    116,403.36x = 160,637.76 × 66,102.72
  4. Step 4: Simplify right side
    116,403.36x = 10,618,592,870.71
  5. Step 5: Solve for x
    x = 10,618,592,870.71/116,403.36
  6. Step 6: Final answer
    x = 91,222.39

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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.