Home / 128,068.81-176,730.65-70,707.17

Finding the Fourth Proportional to 128,068.81, 176,730.65 and 70,707.17

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Solution

The fourth proportional to 128,068.81, 176,730.65 and 70,707.17 is: 97,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,068.81 : 176,730.65 = 70,707.17 : x
  2. Step 2: Convert to fraction form
    128,068.81/176,730.65 = 70,707.17/x
  3. Step 3: Cross multiply
    128,068.81x = 176,730.65 × 70,707.17
  4. Step 4: Simplify right side
    128,068.81x = 12,496,124,113.76
  5. Step 5: Solve for x
    x = 12,496,124,113.76/128,068.81
  6. Step 6: Final answer
    x = 97,573.52

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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.