Home / 98,989.02-136,421.62-70,309.96

Finding the Fourth Proportional to 98,989.02, 136,421.62 and 70,309.96

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Solution

The fourth proportional to 98,989.02, 136,421.62 and 70,309.96 is: 96,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,989.02 : 136,421.62 = 70,309.96 : x
  2. Step 2: Convert to fraction form
    98,989.02/136,421.62 = 70,309.96/x
  3. Step 3: Cross multiply
    98,989.02x = 136,421.62 × 70,309.96
  4. Step 4: Simplify right side
    98,989.02x = 9,591,798,128.51
  5. Step 5: Solve for x
    x = 9,591,798,128.51/98,989.02
  6. Step 6: Final answer
    x = 96,897.60

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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.