Home / 123,554.95-170,508.81-69,840.16

Finding the Fourth Proportional to 123,554.95, 170,508.81 and 69,840.16

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Solution

The fourth proportional to 123,554.95, 170,508.81 and 69,840.16 is: 96,381.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,554.95 : 170,508.81 = 69,840.16 : x
  2. Step 2: Convert to fraction form
    123,554.95/170,508.81 = 69,840.16/x
  3. Step 3: Cross multiply
    123,554.95x = 170,508.81 × 69,840.16
  4. Step 4: Simplify right side
    123,554.95x = 11,908,362,571.81
  5. Step 5: Solve for x
    x = 11,908,362,571.81/123,554.95
  6. Step 6: Final answer
    x = 96,381.10

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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.