Home / 112,543.02-155,357.19-70,122.51

Finding the Fourth Proportional to 112,543.02, 155,357.19 and 70,122.51

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Solution

The fourth proportional to 112,543.02, 155,357.19 and 70,122.51 is: 96,798.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,543.02 : 155,357.19 = 70,122.51 : x
  2. Step 2: Convert to fraction form
    112,543.02/155,357.19 = 70,122.51/x
  3. Step 3: Cross multiply
    112,543.02x = 155,357.19 × 70,122.51
  4. Step 4: Simplify right side
    112,543.02x = 10,894,036,109.35
  5. Step 5: Solve for x
    x = 10,894,036,109.35/112,543.02
  6. Step 6: Final answer
    x = 96,798.86

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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.