Home / 123,775.37-170,810.58-70,070.78

Finding the Fourth Proportional to 123,775.37, 170,810.58 and 70,070.78

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Solution

The fourth proportional to 123,775.37, 170,810.58 and 70,070.78 is: 96,698.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,775.37 : 170,810.58 = 70,070.78 : x
  2. Step 2: Convert to fraction form
    123,775.37/170,810.58 = 70,070.78/x
  3. Step 3: Cross multiply
    123,775.37x = 170,810.58 × 70,070.78
  4. Step 4: Simplify right side
    123,775.37x = 11,968,830,999.88
  5. Step 5: Solve for x
    x = 11,968,830,999.88/123,775.37
  6. Step 6: Final answer
    x = 96,698.01

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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.