Home / 123,838.02-170,897.10-70,133.49

Finding the Fourth Proportional to 123,838.02, 170,897.10 and 70,133.49

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Solution

The fourth proportional to 123,838.02, 170,897.10 and 70,133.49 is: 96,784.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,838.02 : 170,897.10 = 70,133.49 : x
  2. Step 2: Convert to fraction form
    123,838.02/170,897.10 = 70,133.49/x
  3. Step 3: Cross multiply
    123,838.02x = 170,897.10 × 70,133.49
  4. Step 4: Simplify right side
    123,838.02x = 11,985,610,053.88
  5. Step 5: Solve for x
    x = 11,985,610,053.88/123,838.02
  6. Step 6: Final answer
    x = 96,784.57

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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.