Home / 134,842.53-186,004.12-86,427.21

Finding the Fourth Proportional to 134,842.53, 186,004.12 and 86,427.21

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Solution

The fourth proportional to 134,842.53, 186,004.12 and 86,427.21 is: 119,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,842.53 : 186,004.12 = 86,427.21 : x
  2. Step 2: Convert to fraction form
    134,842.53/186,004.12 = 86,427.21/x
  3. Step 3: Cross multiply
    134,842.53x = 186,004.12 × 86,427.21
  4. Step 4: Simplify right side
    134,842.53x = 16,075,817,140.11
  5. Step 5: Solve for x
    x = 16,075,817,140.11/134,842.53
  6. Step 6: Final answer
    x = 119,219.19

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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.