Home / 142,079.04-196,075.44-81,669.12

Finding the Fourth Proportional to 142,079.04, 196,075.44 and 81,669.12

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Solution

The fourth proportional to 142,079.04, 196,075.44 and 81,669.12 is: 112,707.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,079.04 : 196,075.44 = 81,669.12 : x
  2. Step 2: Convert to fraction form
    142,079.04/196,075.44 = 81,669.12/x
  3. Step 3: Cross multiply
    142,079.04x = 196,075.44 × 81,669.12
  4. Step 4: Simplify right side
    142,079.04x = 16,013,308,638.41
  5. Step 5: Solve for x
    x = 16,013,308,638.41/142,079.04
  6. Step 6: Final answer
    x = 112,707.04

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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.