Home / 116,389.09-160,476.05-90,555.15

Finding the Fourth Proportional to 116,389.09, 160,476.05 and 90,555.15

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Solution

The fourth proportional to 116,389.09, 160,476.05 and 90,555.15 is: 124,856.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,389.09 : 160,476.05 = 90,555.15 : x
  2. Step 2: Convert to fraction form
    116,389.09/160,476.05 = 90,555.15/x
  3. Step 3: Cross multiply
    116,389.09x = 160,476.05 × 90,555.15
  4. Step 4: Simplify right side
    116,389.09x = 14,531,932,779.16
  5. Step 5: Solve for x
    x = 14,531,932,779.16/116,389.09
  6. Step 6: Final answer
    x = 124,856.49

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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.