Home / 127,228.12-175,580.29-70,639.50

Finding the Fourth Proportional to 127,228.12, 175,580.29 and 70,639.50

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Solution

The fourth proportional to 127,228.12, 175,580.29 and 70,639.50 is: 97,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,228.12 : 175,580.29 = 70,639.50 : x
  2. Step 2: Convert to fraction form
    127,228.12/175,580.29 = 70,639.50/x
  3. Step 3: Cross multiply
    127,228.12x = 175,580.29 × 70,639.50
  4. Step 4: Simplify right side
    127,228.12x = 12,402,903,895.46
  5. Step 5: Solve for x
    x = 12,402,903,895.46/127,228.12
  6. Step 6: Final answer
    x = 97,485.56

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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.