Home / 115,368.90-159,220.23-70,036.38

Finding the Fourth Proportional to 115,368.90, 159,220.23 and 70,036.38

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Solution

The fourth proportional to 115,368.90, 159,220.23 and 70,036.38 is: 96,656.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,368.90 : 159,220.23 = 70,036.38 : x
  2. Step 2: Convert to fraction form
    115,368.90/159,220.23 = 70,036.38/x
  3. Step 3: Cross multiply
    115,368.90x = 159,220.23 × 70,036.38
  4. Step 4: Simplify right side
    115,368.90x = 11,151,208,531.97
  5. Step 5: Solve for x
    x = 11,151,208,531.97/115,368.90
  6. Step 6: Final answer
    x = 96,656.97

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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.