Home / 94,128.90-130,013.67-70,361.69

Finding the Fourth Proportional to 94,128.90, 130,013.67 and 70,361.69

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Solution

The fourth proportional to 94,128.90, 130,013.67 and 70,361.69 is: 97,185.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,128.90 : 130,013.67 = 70,361.69 : x
  2. Step 2: Convert to fraction form
    94,128.90/130,013.67 = 70,361.69/x
  3. Step 3: Cross multiply
    94,128.90x = 130,013.67 × 70,361.69
  4. Step 4: Simplify right side
    94,128.90x = 9,147,980,894.23
  5. Step 5: Solve for x
    x = 9,147,980,894.23/94,128.90
  6. Step 6: Final answer
    x = 97,185.68

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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.