Home / 136,852.63-188,852.95-76,421.59

Finding the Fourth Proportional to 136,852.63, 188,852.95 and 76,421.59

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Solution

The fourth proportional to 136,852.63, 188,852.95 and 76,421.59 is: 105,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,852.63 : 188,852.95 = 76,421.59 : x
  2. Step 2: Convert to fraction form
    136,852.63/188,852.95 = 76,421.59/x
  3. Step 3: Cross multiply
    136,852.63x = 188,852.95 × 76,421.59
  4. Step 4: Simplify right side
    136,852.63x = 14,432,442,715.19
  5. Step 5: Solve for x
    x = 14,432,442,715.19/136,852.63
  6. Step 6: Final answer
    x = 105,459.74

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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.