Home / 153,649.50-212,094.63-103,377.66

Finding the Fourth Proportional to 153,649.50, 212,094.63 and 103,377.66

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Solution

The fourth proportional to 153,649.50, 212,094.63 and 103,377.66 is: 142,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,649.50 : 212,094.63 = 103,377.66 : x
  2. Step 2: Convert to fraction form
    153,649.50/212,094.63 = 103,377.66/x
  3. Step 3: Cross multiply
    153,649.50x = 212,094.63 × 103,377.66
  4. Step 4: Simplify right side
    153,649.50x = 21,925,846,547.97
  5. Step 5: Solve for x
    x = 21,925,846,547.97/153,649.50
  6. Step 6: Final answer
    x = 142,700.41

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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.