Home / 112,551.02-155,341.19-72,315.08

Finding the Fourth Proportional to 112,551.02, 155,341.19 and 72,315.08

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Solution

The fourth proportional to 112,551.02, 155,341.19 and 72,315.08 is: 99,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,551.02 : 155,341.19 = 72,315.08 : x
  2. Step 2: Convert to fraction form
    112,551.02/155,341.19 = 72,315.08/x
  3. Step 3: Cross multiply
    112,551.02x = 155,341.19 × 72,315.08
  4. Step 4: Simplify right side
    112,551.02x = 11,233,510,582.15
  5. Step 5: Solve for x
    x = 11,233,510,582.15/112,551.02
  6. Step 6: Final answer
    x = 99,808.16

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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.