Home / 154,272.15-212,915.27-86,292.90

Finding the Fourth Proportional to 154,272.15, 212,915.27 and 86,292.90

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Solution

The fourth proportional to 154,272.15, 212,915.27 and 86,292.90 is: 119,095.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,272.15 : 212,915.27 = 86,292.90 : x
  2. Step 2: Convert to fraction form
    154,272.15/212,915.27 = 86,292.90/x
  3. Step 3: Cross multiply
    154,272.15x = 212,915.27 × 86,292.90
  4. Step 4: Simplify right side
    154,272.15x = 18,373,075,038.01
  5. Step 5: Solve for x
    x = 18,373,075,038.01/154,272.15
  6. Step 6: Final answer
    x = 119,095.22

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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.