Home / 115,808.21-159,840.23-70,501.13

Finding the Fourth Proportional to 115,808.21, 159,840.23 and 70,501.13

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Solution

The fourth proportional to 115,808.21, 159,840.23 and 70,501.13 is: 97,306.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,808.21 : 159,840.23 = 70,501.13 : x
  2. Step 2: Convert to fraction form
    115,808.21/159,840.23 = 70,501.13/x
  3. Step 3: Cross multiply
    115,808.21x = 159,840.23 × 70,501.13
  4. Step 4: Simplify right side
    115,808.21x = 11,268,916,834.46
  5. Step 5: Solve for x
    x = 11,268,916,834.46/115,808.21
  6. Step 6: Final answer
    x = 97,306.72

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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.