Home / 127,421.56-175,852.38-70,838.20

Finding the Fourth Proportional to 127,421.56, 175,852.38 and 70,838.20

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Solution

The fourth proportional to 127,421.56, 175,852.38 and 70,838.20 is: 97,762.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,421.56 : 175,852.38 = 70,838.20 : x
  2. Step 2: Convert to fraction form
    127,421.56/175,852.38 = 70,838.20/x
  3. Step 3: Cross multiply
    127,421.56x = 175,852.38 × 70,838.20
  4. Step 4: Simplify right side
    127,421.56x = 12,457,066,064.92
  5. Step 5: Solve for x
    x = 12,457,066,064.92/127,421.56
  6. Step 6: Final answer
    x = 97,762.62

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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.