Home / 124,143.14-171,321.40-70,430.42

Finding the Fourth Proportional to 124,143.14, 171,321.40 and 70,430.42

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Solution

The fourth proportional to 124,143.14, 171,321.40 and 70,430.42 is: 97,196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,143.14 : 171,321.40 = 70,430.42 : x
  2. Step 2: Convert to fraction form
    124,143.14/171,321.40 = 70,430.42/x
  3. Step 3: Cross multiply
    124,143.14x = 171,321.40 × 70,430.42
  4. Step 4: Simplify right side
    124,143.14x = 12,066,238,156.99
  5. Step 5: Solve for x
    x = 12,066,238,156.99/124,143.14
  6. Step 6: Final answer
    x = 97,196.17

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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.