Home / 112,486.18-155,261.73-70,019.50

Finding the Fourth Proportional to 112,486.18, 155,261.73 and 70,019.50

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Solution

The fourth proportional to 112,486.18, 155,261.73 and 70,019.50 is: 96,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,486.18 : 155,261.73 = 70,019.50 : x
  2. Step 2: Convert to fraction form
    112,486.18/155,261.73 = 70,019.50/x
  3. Step 3: Cross multiply
    112,486.18x = 155,261.73 × 70,019.50
  4. Step 4: Simplify right side
    112,486.18x = 10,871,348,703.74
  5. Step 5: Solve for x
    x = 10,871,348,703.74/112,486.18
  6. Step 6: Final answer
    x = 96,646.08

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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.