Home / 124,021.79-171,146.93-70,306.80

Finding the Fourth Proportional to 124,021.79, 171,146.93 and 70,306.80

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Solution

The fourth proportional to 124,021.79, 171,146.93 and 70,306.80 is: 97,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,021.79 : 171,146.93 = 70,306.80 : x
  2. Step 2: Convert to fraction form
    124,021.79/171,146.93 = 70,306.80/x
  3. Step 3: Cross multiply
    124,021.79x = 171,146.93 × 70,306.80
  4. Step 4: Simplify right side
    124,021.79x = 12,032,792,626.59
  5. Step 5: Solve for x
    x = 12,032,792,626.59/124,021.79
  6. Step 6: Final answer
    x = 97,021.60

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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.